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Two bulbs are having the ratings as 60 W, 220 V and 40 W, 220 V respectively. Which one has a greater resistance? |
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Answer» <P> Solution :electric POWER `P=(V^(2))/(R )`For the same value of V,R is inversely proportional to P. Therefore, LESSER the power, greater the RESISTANCE Hence, the bulb with 40W, 220 V rating has a greater resistance. |
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